Home / 20,926.46-28,878.83-11,366.54

Finding the Fourth Proportional to 20,926.46, 28,878.83 and 11,366.54

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Solution

The fourth proportional to 20,926.46, 28,878.83 and 11,366.54 is: 15,685.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,926.46 : 28,878.83 = 11,366.54 : x
  2. Step 2: Convert to fraction form
    20,926.46/28,878.83 = 11,366.54/x
  3. Step 3: Cross multiply
    20,926.46x = 28,878.83 × 11,366.54
  4. Step 4: Simplify right side
    20,926.46x = 328,252,282.43
  5. Step 5: Solve for x
    x = 328,252,282.43/20,926.46
  6. Step 6: Final answer
    x = 15,685.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.